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3-Methylpyridine or 3-picoline, is an organic compound with formula 3-CH 3 C 5 H 4 N. It is one of three positional isomers of methylpyridine , whose structures vary according to where the methyl group is attached around the pyridine ring.
The structure of niacin, and thus β–picoline, was determined in 1883 when the Czech-Austrian chemist Zdenko Hans Skraup and Albert Cobenzl repeatedly oxidized β–naphthoquinoline and found niacin among the products, thus proving that β–picoline was 3-methylpyridine. [16]
Structure of Zn(picolinate) 2 (H 2 O) 2. Hydrogenation of picolinic acid gives piperidine-2-carboxylic acid, a precursor to the drug Mepivacaine. Picolinic acid is a bidentate chelating agent of elements such as chromium, zinc, manganese, copper, iron, and molybdenum in the human body. [5] [6] It is a substrate in the Mitsunobu reaction.
The following other wikis use this file: Usage on ar.wikipedia.org بيكولين; Usage on cs.wikipedia.org Pikolin; Usage on de.wikipedia.org Picoline
Pyridine-borane (C 5 H 5 NBH 3, melting point 10–11 °C) is a mild reducing agent. structure of the Crabtree's catalyst. Transition metal pyridine complexes are numerous. [108] [109] Typical octahedral complexes have the stoichiometry MCl 2 (py) 4 and MCl 3 (py) 3. Octahedral homoleptic complexes of the type M(py) + 6 are rare or tend to ...
Johnson and chef Puttie have made multiple videos about the pancakes together, with the latter noting that it took two months for them to perfect the recipe. She also emphasizes on the Rock’s ...
Broccoli has long been a dinnertime staple, loved for its versatility whether steamed, roasted, or stir-fried.But another green veggie, broccolini, has gained popularity as a more elegant-looking ...
Once opened, compounded semaglutide typically lasts 28 days in the fridge. Compounded semaglutide, which contains the same active ingredient as Ozempic and Wegovy, is available from many ...